磷钨酸

  • 基本信息
  • 制备方法及用途
  • 物化性质
  • 安全信息
  • 毒理性
  • MSDS
  • 结构与计算化学

磷钨酸 基本信息

中文名称:
磷钨酸 
中文别名:
磷钨酸;
磷鎢酸 
英文名称:
Phosphotungstic acid
英文别名:
Phosphotungstic acid, 44-hydrate;
Phosphotungstic acid 44-hydrate;
oxotungsten,hydroxide,phosphate 
CAS No.:
12067-99-1
分 子 式:
H3PO4.12WO3-xH2O
分 子 量:
6498.97
精确分子量:
2881.20000
PSA:
702.09000
MDL:
MFCD00041964
EINECS:
235-087-6
InChI:
InChI=1/O5P2.72O.24W/c1-6(2)5-7(3)4;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;/rO5P2.24O3W/c1-6(2)5-7(3)4;24*1-4(2)3
危险品标志:
风险术语:
R34   
安全术语:
S24/25
分子结构式:
SDS:
查看

磷钨酸 制备方法及用途

制备方法

由钨酸钠溶液中加磷酸和盐酸酸化后,以乙醚萃取而得。采用Rosenheim与Jaenicke的方法,磷钨酸是很容易制备的。将1000g钨酸钠(Na2WO4·2H2O)与160g磷酸氢二钠(Na2HPO4·2H2O)溶解在1500mL沸水中。在恒定的搅拌下将800mL的浓盐酸逐滴地加入其中。当加入一半的酸时开始有磷钨酸分离出来。由于沉淀出来的酸必须加以纯制,所以并不需要将它过滤出来。溶液冷却后,加入不含还原剂的乙醚,直到经摇荡后混合物分成三个液层为止。这样大约需要600mL的乙醚。如果必要时,可以加入一些水来将氯化钠溶解掉。底下液层是磷钨酸 乙醚复合物,加水洗涤数次,每次加入足够的乙醚使形成第三液层。然后在乙醚液层中通入洗涤过不含尘埃的空气,使之蒸发结晶。过滤后,令晶体空敞地放在空气中,但勿使与尘埃接触,直到它们不再有乙醚的气味,依钨酸钠计算产率约为80%。

合成制备方法

 由钨酸钠溶液中加磷酸和盐酸酸化后,以乙醚萃取而得。采用Rosenheim与Jaenicke的方法,磷钨酸是很容易制备的。将1000g钨酸钠(Na2WO4·2H2O)与160g磷酸氢二钠(Na2HPO4·2H2O)溶解在1500mL沸水中。在恒定的搅拌下将800mL的浓盐酸逐滴地加入其中。当加入一半的酸时开始有磷钨酸分离出来。由于沉淀出来的酸必须加以纯制,所以并不需要将它过滤出来。溶液冷却后,加入不含还原剂的乙醚,直到经摇荡后混合物分成三个液层为止。这样大约需要600mL的乙醚。如果必要时,可以加入一些水来将氯化钠溶解掉。底下液层是磷钨酸乙醚复合物,加水洗涤数次,每次加入足够的乙醚使形成第三液层。然后在乙醚液层中通入洗涤过不含尘埃的空气,使之蒸发结晶。过滤后,令晶体空敞地放在空气中,但勿使与尘埃接触,直到它们不再有乙醚的气味,依钨酸钠计算产率约为80%。

用途简介

主要用作生物化学试剂,也用于制颜料等。磷钨酸被应用于沉淀蛋白质、植物碱和某些氨基酸。相对于磷钨酸钾与磷钨酸铵的不溶性,磷钨酸钠可因其可溶性而被应用于定量分析作为试剂。

用途

 主要用作生物化学试剂,也用于制颜料等。磷钨酸被应用于沉淀蛋白质、植物碱和某些氨基酸。相对于磷钨酸钾与磷钨酸铵的不溶性,磷钨酸钠可因其可溶性而被应用于定量分析作为试剂。

磷钨酸 物化性质

外观与性状:
灰白色结晶粉末
熔点:
89ºC
水溶解性:
PRACTICAL 不溶
存储条件/存储方法:

常温密闭,阴凉通风干燥

稳定性相关:

易潮解。与碱共沸时分解为磷酸盐和钨酸盐。含水量一般是在9~17分子之间。加氯水后加热很容易使还原产物再被氧化。虽然磷钨酸在水中的溶解度很大,但它可以被乙醚完全从水溶液中萃取出来。它和乙醚形成一比重很大的液层,这是一个乙醚与磷钨酸的复合物,既不溶于乙醚也不溶于水,因而当以过量乙醚来萃取水溶液时形成了三个液层。除了极易溶于水和乙醚之外,磷钨酸还易溶于低元醇和酯中。

其它信息:

1.       性状:从水中(它极易溶于水)结晶为很重的白色八面体。它的水溶液对光线是不稳定的,由于还原作用的结果会缓慢地变为蓝色。

2.       密度(g/mL,25℃):未确定

3.       相对蒸汽密度(g/mL,空气=1):未确定

4.       熔点(ºC):未确定

5.       沸点(ºC,常压):未确定

6.       沸点(ºC,1mmHg):未确定

7.       折射率:未确定

8.       闪点(ºC):未确定

9.       比旋光度(º):未确定

10.    自燃点或引燃温度(ºC):未确定

11.    蒸气压(20ºC):未确定

12.    饱和蒸气压(kPa,60ºC):未确定

13.    燃烧热(KJ/mol):未确定

14.    临界温度(ºC):未确定

15.    临界压力(KPa):未确定

16.    油水(辛醇/水)分配系数的对数值:未确定

17.    爆炸上限(%,V/V):未确定

18.    爆炸下限(%,V/V):未确定

19.    溶解性:几乎不溶于水。

磷钨酸 安全信息

包装等级:
III
风险类别:
5.1
海关代码:
29159080
WGK_Germany:
3
德国有关水污染物质的分类清单
危险类别码:
R34
安全说明:
26-36/37/39-45-24/25
安全标志:
S24/25:防止皮肤和眼睛接触。
危险标志:
C:Corrosive;

磷钨酸 毒理性

CHEMICAL IDENTIFICATION

RTECS NUMBER :
TH5650000
CHEMICAL NAME :
Phosphotungstic acid
CAS REGISTRY NUMBER :
12067-99-1
LAST UPDATED :
199701
WISWESSER LINE NOTATION :
.WO..O3 24 &..H3.P-O4 2 &QH48

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
3300 mg/kg
REFERENCE :
TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 42,417,1977 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO TUNGSTEN, soluble-air:10H TWA 1 mg(W)/m3;STEL 3 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 81065 No. of Facilities: 867 (estimated) No. of Industries: 7 No. of Occupations: 8 No. of Employees: 8320 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81065 No. of Facilities: 1413 (estimated) No. of Industries: 5 No. of Occupations: 14 No. of Employees: 26369 (estimated) No. of Female Employees: 19198 (estimated)
毒理学数据:

1.        急性毒性:大鼠口服LD50:3300mg/kg;

主要的刺激性影响:

在皮肤上面:刺激皮肤和粘膜

在眼睛上面:刺激的影响

致敏作用:没有已知的敏化现象

生态数据:

通常对水体是稍微有害的,不要将未稀释或大量产品接触地下水,水道或污水系统,未经政府许可勿将材料排入周围环境。

磷钨酸 MSDS

Name: Phosphotungstic Acid Hydrate p.a. Material Safety Data Sheet
Synonym: Phosphowolframic Acid; Tungstophosphoric Acid; Tungstate(3-), tetracosa-.mu.-oxododecaoxo[.mu.12-(phosphato(3-)-O:O:O:O':O':O' :O'':O'':O'':O''':O''':O''')]dodeca-, trihydrogen, hydrat
CAS: 12067-99-1
Section 1 - Chemical Product   MSDS Name:Phosphotungstic Acid Hydrate p.a. Material Safety Data Sheet
Synonym:Phosphowolframic Acid; Tungstophosphoric Acid; Tungstate(3-), tetracosa-.mu.-oxododecaoxo[.mu.12-(phosphato(3-)-O:O:O:O':O':O' :O'':O'':O'':O''':O''':O''')]dodeca-, trihydrogen, hydrat

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
12067-99-1 Phosphotungstic Acid Hydrate, p.a. 100 unlisted
Hazard Symbols: C
Risk Phrases: 34

Section 3 - HAZARDS IDENTIFICATION
  EMERGENCY OVERVIEW
Causes burns.Corrosive.
Potential Health Effects
Eye:
Causes eye burns. Contact may cause ulceration of the conjunctiva and cornea.
Skin:
Causes skin burns. May cause skin rash (in milder cases), and cold and clammy skin with cyanosis or pale color.
Ingestion:
May cause severe and permanent damage to the digestive tract. Causes gastrointestinal tract burns. May cause perforation of the digestive tract. Causes severe pain, nausea, vomiting, diarrhea, and shock.
May cause systemic effects.
Inhalation:
Causes chemical burns to the respiratory tract. Aspiration may lead to pulmonary edema. May cause systemic effects.
Chronic:
Effects may be delayed.

Section 4 - FIRST AID MEASURES
  Eyes: Get medical aid immediately. Do NOT allow victim to rub eyes or keep eyes closed. Extensive irrigation with water is required (at least 30 minutes).
Skin:
Get medical aid immediately. Immediately flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse. Destroy contaminated shoes.
Ingestion:
Never give anything by mouth to an unconscious person. Get medical aid immediately. Do NOT induce vomiting. If conscious and alert, rinse mouth and drink 2-4 cupfuls of milk or water.
Inhalation:
Get medical aid immediately. Remove from exposure and move to fresh air immediately. If breathing is difficult, give oxygen. Do not use mouth-to-mouth resuscitation if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Notes to Physician:

Section 5 - FIRE FIGHTING MEASURES
  General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or appropriate foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
  General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Clean up spills immediately, observing precautions in the Protective Equipment section. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.

Section 7 - HANDLING and STORAGE
  Handling:
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. Use only in a well-ventilated area. Minimize dust generation and accumulation.
Keep container tightly closed. Do not get on skin or in eyes. Do not ingest or inhale. Discard contaminated shoes.
Storage:
Keep away from heat and flame. Keep refrigerated. (Store below 4C/39F.) Keep container closed when not in use. Corrosives area.
Store in a cool, dry area away from incompatible substances.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
  Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 12067-99-1: United Kingdom, WEL - TWA: (listed as tungsten, soluble compounds mg/m3 TWA (as W) United Kingdom, WEL - STEL: (listed as tungsten, soluble compound 3 mg/m3 STEL (as W) Belgium - TWA: (listed as tungsten, soluble compounds): 1 mg/m3 V (as W) Belgium - STEL: (listed as tungsten, soluble compounds): 3 mg/m3 (as W) Malaysia: (listed as tungsten, soluble compounds): 1 mg/m3 TWA (a Netherlands: (listed as tungsten, soluble compounds): 1 mg/m3 MAC W) Russia: (listed as tungsten): 6 mg/m3 TWA Spain: (listed as tungsten, soluble compounds): 1 mg/m3 VLA-ED (a Spain: (listed as tungsten, soluble compounds): 3 mg/m3 VLA-EC (a CAS# 12501-23-4: United Kingdom, WEL - TWA: (listed as tungsten, soluble compounds mg/m3 TWA (as W) United Kingdom, WEL - STEL: (listed as tungsten, soluble compound 3 mg/m3 STEL (as W) Belgium - TWA: (listed as tungsten, soluble compounds): 1 mg/m3 V (as W) Belgium - STEL: (listed as tungsten, soluble compounds): 3 mg/m3 (as W) Malaysia: (listed as tungsten, soluble compounds): 1 mg/m3 TWA (a Netherlands: (listed as tungsten, soluble compounds): 1 mg/m3 MAC W) Russia: (listed as tungsten): 6 mg/m3 TWA Spain: (listed as tungsten, soluble compounds): 1 mg/m3 VLA-ED (a Spain: (listed as tungsten, soluble compounds): 3 mg/m3 VLA-EC (a Personal Protective Equipment Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant respirator use.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES
 
Physical State: Crystals
Color: white to cream
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: 0 deg C
Autoignition Temperature: Not applicable.
Flash Point: Not applicable.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature: Not available.
Solubility in water: soluble
Specific Gravity/Density: Not available.
Molecular Formula: H3PO40W12.xH2O
Molecular Weight: 2880.17

Section 10 - STABILITY AND REACTIVITY
  Chemical Stability:
Stable under normal temperatures and pressures.
Conditions to Avoid:
High temperatures, dust generation.
Incompatibilities with Other Materials:
Strong bases.
Hazardous Decomposition Products:
Phosphine, oxides of phosphorus.
Hazardous Polymerization: Has not been reported.

Section 11 - TOXICOLOGICAL INFORMATION
  RTECS#:
CAS# 12067-99-1: TH5650000 CAS# 12501-23-4 unlisted.
LD50/LC50:
CAS# 12067-99-1: Oral, rat: LD50 = 3300 mg/kg.
CAS# 12501-23-4.
Carcinogenicity:
Tungsten hydroxide oxide phosphate - Not listed by ACGIH, IARC, or NTP.
Phosphotungstic Acid Hydrate, p.a. - Not listed by ACGIH, IARC, or NTP.
Other:
See actual entry in RTECS for complete information.

Section 12 - ECOLOGICAL INFORMATION
 

Section 13 - DISPOSAL CONSIDERATIONS
  Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION
 
IATA
Shipping Name: CORROSIVE SOLID, ACIDIC, INORGANIC, N.O.S.*
Hazard Class: 8
UN Number: 3260
Packing Group: III
IMO
Shipping Name: CORROSIVE SOLID, ACIDIC, INORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3260
Packing Group: III
RID/ADR
Shipping Name: CORROSIVE SOLID, ACIDIC, INORGANIC, N.O.S.
Hazard Class: 8
UN Number: 3260
Packing group: III

Section 15 - REGULATORY INFORMATION
 
European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: C
Risk Phrases:
R 34 Causes burns.
Safety Phrases:
S 24/25 Avoid contact with skin and eyes.
WGK (Water Danger/Protection)
CAS# 12067-99-1: No information available.
CAS# 12501-23-4: No information available.
Canada
CAS# 12067-99-1 is listed on Canada's DSL List.
CAS# 12067-99-1 is not listed on Canada's Ingredient Disclosure List.
CAS# 12501-23-4 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 12067-99-1 is listed on the TSCA inventory.
CAS# 12501-23-4 is not on the TSCA Inventory because it is a hydrate.
It is considered to be listed if the CAS number for the anhydrous form
is on the inventory (40CFR720.3(u)(2)).


SECTION 16 - ADDITIONAL INFORMATION
N/A

磷钨酸 分子结构与计算化学数据

分子结构数据

1、摩尔折射率:无可用的

2、摩尔体积(cm3/mol):无可用的

3、等张比容(90.2K):无可用的

4、表面张力(dyne/cm):无可用的

5、介电常数:无可用的

6、极化率(10-24cm3):无可用的

7、单一同位素质量:2881.204621 Da

8、标称质量:2882 Da

9、平均质量:2880.0536 Da

计算化学数据

1.疏水参数计算参考值(XlogP):无

2.氢键供体数量:1

3.氢键受体数量:6

4.可旋转化学键数量:0

5.互变异构体数量:无

6.拓扑分子极性表面积104

7.重原子数量:8

8.表面电荷:-4

9.复杂度:38.8

10.同位素原子数量:0

11.确定原子立构中心数量:0

12.不确定原子立构中心数量:0

13.确定化学键立构中心数量:0

14.不确定化学键立构中心数量:0

15.共价键单元数量:3

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湖北万得化工有限公司

产品介绍:
产品名称:磷钨酸 Cas号:12067-99-1 纯度:99% 包装信息:1kg铝箔袋/氟化瓶,10kg铝听/纸箱,25kg纸板桶/编织袋/塑料桶,200kg镀锌铁桶/塑料桶,1t吨袋 价格:1.0元 - 1,000.0元
联系方式:
联系人:王念 电话:027-59210159 手机:15172311821